Embroidering-machine.



UNITED STATES PATENT ()FFICE.

GoTTwA'LT sIEEEn'or PLAUEN, GERMANY, AssIGNoE o voGTLANnIsonE MASCI-IINEN-FABRIK, or PLAUEN, GERMANY.

EMBROIDERING-MACHINE.

Specification of Letters Patent. 7 l P t t July 4,

Application filed Mays, 1915. Serial No. 26,442.

To all whom it may concern:

Be it known that I, GoTTwALT SIEB R, a subject of the German Emperor, residing at Plauen, in Vogtland, in the Kingdom of Saxony, Germany, have invented certain new and useful Improvements in Embroidering- Machines, of which the following is a specification.

In the trade, with certain fabrics, it is customary and advantageous for the subse-- quent cutting up to use goods in whole lengths of about 40 to 50 meters. been tried to embroider such long pieces of goods without first cutting it up into pieces fitting the normal embroidery length of the embroidering machine. But the stretching of such long pieces of fabric onthe frame and their feeding consume much time, are inconvenient and must be handled by persons particularly skilled with this kind of work. As a natural result, such embroideries were high in price, and for this reason could not be further developed.

The presentinvention has for its object to obviate the above-named drawbacks and consists in a novel construction, arrangement i and combination of parts, as will be hereinafter fully specified and set forth in the appended claims.

In the drawing in which similar reference characters denote corresponding parts Figures 1 and 2 show by way of example two different forms of construction of my inven tion. Fig. 3 is a cross section through one of the conveyers and guides and Fig. 4 shows a further modification.

According to Fig. 1 the tambour frame 1, which is supported on rollers 2, carries the vertically disposed fabric rollers ,3 and 4. On the lower longitudinal bar of the frame 1, a plurality of supports 5 are provided which carry a longitudinally extending band guide 6 from the ends of which projects brackets 7, 8, which carry disks or sheaves 9 and 10 respectively. Traveling over these sheaves and guided in the piece 6iis an endless band 11 which is provided with suitable means such as hooks 12 for fastening thereto the lower longitudinal edge of the fabric 22. At the upper part of the fabric frame a sinnlar arrangement is provided, consistlng of the longitudinal band guide 13, .sheaves 15 and 16 and an endless band 17 with fastenlng hooks 18 or the like. The guide piece 13 is suspended from Vertically adjustable rods 1d It has carried by the upper longitudinal bar of the frame 1, so'that the part 13can be lowered or raised in order to stretch the fabric more or less, as it may be required. The ends 20, 21 of the guide piece 6 may be bent, as shown, whereby the distance between the bands 11 and 17 away from their ends is gradually increased, in consequence of which I the fabric 22 is stretched. The guide piece 13 may be bent at its end in a similar way as the piece 6 (see Fig. 4.). The bands may be fed by hand by means of a crank 23 and transmission belts or chains 24, 25 or mechanically through the medium of a suitable motor 26, as shown in Fig. 2.

In the modification according to Fig. 2 instead of the band 11 a stationary guide piece 19 is fixed to the lower longitudinal bar of the frame 1, which may be provided with suitable fastening means such as hooks 19, to which the lower edge of the fabric may be attached during theembroidering operation.

The operation of my device is as follows: Assuming that the fabric is fed from the roller 3 on to the roller 4:, the fabric at the starting ends of the guides 6 and 13 is attached to the bands 11 and 17 which by the rotation of the crank 23 or of the motor move from left to right and carry with them and simultaneously stretch the fabric. The embroidered fabric at the right hand end is wound upon the roller 4: by hand or mechanically. The feeding of the "fabric according to Fig. 2 isaccomplished in a similar manner, save that the fabric prior to feeding is unhooked or unfastened from the guide 19 and after feeding it is again fastened to the latter and stretched by the screws or bolts 14:.

What I claim and desire to secure by Let ters Patent is:

1. A tambour frame for embroidering machines, comprising fiexible endless conveyers extending along the longitudinal sides of saidframe and fastening means on said conveyers for removably fastening the fabric thereto.

2. A tambour frame for embroidering machines, comprising guides extending along the longitudinal sides of said frame, flexible endless conveyers guided in said guides and fastening means "on said conveyers for removably fastening the fabric thereto.

3. A tambourframe for embroidering machines, comprising guides extending along the longitudinal sides of said frame, flexible endless conveyers for the fabric guided in said guides and means for adjusting the guides relative to one another so as to stretch the fabric.

4. A tambour frame for embroidering machines, comprising guides extending along the longitudinal sides of said frame and adj ustable relative to one another, flexible endless conveyers for the fabric guided in said guides and fastening means on said conveyerg for fastening the fabric thereto.

5. A tambour frame for embroidering machines, comprising guides extending along the longitudinal sides of said frame, flexible endless conveyors for the fabric guided in 15 stretched during the feeding movement 2') thereof.

In testimony whereof I afiix my signature 1n presence of two witnesses.

GOTTYVALT SIEBER.

Witnesses E. BURNHAM, D. KLEIN.

Gupta 0! this patent my be obtained for five cent: each, by nddressing the Commlnionernf intents. Walhington, D. 0." 

